ALTERNATING CURRENT ELECTRICITY AND ITS APPLI- 

 CATION TO INDUSTRY. By W. H. TIMBIE, Head of 

 Department of Applied Science, Wentworth Institute, and H. H. 

 HIGBIE, Professor of Electrical Engineering, University of Mich- 

 igan. First Course, x +534 pages, 5 1 by 8. 389 figures. Cloth, 

 $2.00 net. 



Second Course, ix+729 pages. 5j by 8. 357 figures. Cloth 

 $3.00 net. 



ELECTRIC LIGHTING. By H. H. HIGBIE, Professor of Electrical 

 Engineering, University of Michigan. (In preparation.) 



HEAT AND HEAT ENGINEERING 



HEAT; A Text-book for Technical and Industrial Students. By 

 J. A. RANDALL, Instructor in Mechanics and Heat, Pratt Institute. 

 xiv+331 pages, 5M by 8. 80 figures. Cloth, $1.50 net. 



GAS POWER. By C. F. HIRSHFELD, Professor of Power Engineering, 

 Sibley College, Cornell University, and T. C. ULBRICHT, formerly 

 Instructor, Department of Power Engineering, Cornell University. 

 viii+198 pages, 5)4 by B. 60 figures. Cloth, $1.25 net. 



STEAM POWER. By C. F. HIRSHFELD, Professor of Power Engi- 

 neering, Sibley College, Cornell University, and T. C. ULBRICHT, 

 formerly Instructor, Department of Power Engineering, Cornell 

 University, viii +419 pages. 5 % by 8, 228 Figures. Cloth. 



HEAT AND LIGHT IN THE HOUSEHOLD. By W. G. WHITMAN, 



State Normal School, Salem, Mass. (In preparation.) 



MECHANICS AND MATHEMATICS 



ELEMENTARY PRACTICAL MECHANICS. By J. M. JAMESON, 

 Girard College, formerly of Pratt Institute, xii+321 pages, 5 by 

 7J^. 212 figures. Cloth, $1.50 net. 



MATHEMATICS FOR MACHINISTS. By R. W. BURNHAM, 

 Instructor in Machine Work, Pratt Institute Evening School. 

 vii+229 pages, 5 by 7. 175 figures. Cloth, $1.25 net. 



PRACTICAL SHOP MECHANICS AND MATHEMATICS. 



By JAMES F. JOHNSON, Superintendent of the State Trade School, 

 Bridgeport, Conn, viii+130 pages, 5 by 7. 81 figures. Cloth, 

 $1.00 net. 



